Cas ends up getting Dean's cough, which wouldn't be so bad if he didn't A) work at a library where you need to be quiet and B) Smoke. He goes to work anyway, despite Dean's protests; it's funny how that works. He comes home later that day, Dean hearing him coming before he gets through the door due to the hacking.
"How's your day choky?" Dean chuckles from his spot on the couch.
Cas glares at him, shrugging off his shoulder bag. He grabs one of the bottles of cough syrup and drops onto the couch, drinking straight from the bottle.
"I don't think you're supposed to just drink it."
"It works." Cas deadpans taking another sip of it.
Dean snatches the bottle away from him finding a little less than half. "This is your first bottle right?"
Cas shrugs, lighting a cigarette. "I can't be sure," he coughs.
"Ya, not cool, man." He caps the bottle hiding it in the couch.
"This is your doing," Cas glares at him trying to not to cough long enough to actually enjoy his cigarette.
"Nature Cas, it's the circle of life." Dean shrugs at him.
"Hmm," Cas rasps starting a coughing fit. He angrily leans forward and snubs out the rest of his cigarette.
He stomps off to the bed room stripping off his sweater and tossing on the floor on his way. Dean just laughs giving him some space to change and hopefully for the drugs to take effect. A little bit later Castiel reemerges from their room in just his sweatpants, he crawls on to the sofa right next to Dean. He snuggles in against Dean wrapping his arms around him.
"Any better?" Dean asks draping his arm around Cas.
Cas shakes a little trying to fight the cough from escaping, "A little." He coughs, sneakily digging the cough syrup from the cushions. He pulls away slightly from Dean taking the cap of to drink some.
"You sneaky bastard," He huffs shaking his head at the dark haired man, "You really need to cut back Cas, it can't be good."
Dean snakes the bottle, Cas pouting as he moves back to his original spot against him.
"It helps," he murmurs against Dean.
"You gotta wait for this to kick in." He warns, running his hand through Cas's hair.
"My apologies, I didn't know you where a doctor." He rasps sarcastically.
"Cas," Dean sighs.
"I didn't think so."
"Fine, you wanta kill yourself," Dean pushes off from the couch disrupting the other man, "I don't care." It was a lie, but Cas was being impossible. He grabbed his keys of the table in the kitchen, "I'm going out." Dean calls over his shoulder before slamming the door, Cas hacking behind him.
Dean heads out for a short drive, but ends up going to the garage. The Mustang just didn't have the same mind clearing effect as his baby did. He figured it would be good to put some more work into her; the sooner she was up and running the better. He toils away loosing track of time, the Impala having the desired mind clearing effect. He checks his phone and sees that it's almost eleven; he locks up again to head home.
When he gets back the apartment smells like bacon and there are empty wrappers with Popsicle sticks in them on the coffee table. Dean shakes his head smiling to himself, when left to his own devices Cas ate the weirdest things. He peaks into the bedroom to find Cas laying on his stomach octopussing the bed due to the alcohol content of the cough syrup. Great Dean thought, as he went to shower the grease off.
He crept back to the bedroom after his shower, slipping on some boxers before crawling in to bed. Dean rubs his hand along Cas's bare back, getting him to shift to give Dean more room. He finally get's comfortable when Cas's arm flops over him, he just shrugs and drifts off to sleep.
Some hours later Dean awakes to Castiel sitting up coughing and wheezing. Dean blinks seeing Cas's back facing him, his shoulder's shaking as the hacking continues.
"Cas?" Dean asks groggily, "You ok?"
Cas doesn't reply just nods as he seems to get worse. Dean sits up rubbing Cas's back hoping it stops, but the wheezing continues. He can sense the frustration and discomfort in Castiel's shoulders as he tries to calm him. Dean gets off the bed after it continues and drags the other man along with him.
He sits him on the toilet seat, Cas's blue eyes watering as the coughs rack through him. Dean turns the shower on all the way to hot and closes the door to trap the steam.
"Just relax, Cas." Dean instructs him, rubbing sleep from his eyes in the dark bathroom. "Deep breathes." He sinks down, sitting on the floor across from Castiel.
Cas looked pathetic as he tried to get his breathing back to normal; his flash flushed, eyes watering and tired plus he looked almost scared. Dean couldn't stand seeing him like that so he pulled him down to the floor, making Cas rest his back against Dean's chest. He took deep breathes, guiding Cas to breathe in the steam to make the wheezing and hacking stop.
"Doctor tomorrow," Dean whispers, stroking Cas's chest as the coughing calms down.
Cas just nods in defeat, at least now he was seeing reason. Dean dropped a kiss to his shoulder as Castiel's coughs became sparser. They aren't sure how it happens, but they end up falling asleep on the bathroom floor.
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